Filtered environmental control system
AssigneeUnited Technologies Corporation
InventorGregory L. Defrancesco
Life of this patent
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Abstract
An air-conditioning system being powered by a supply of compressed air, has an air cycle machine which incorporates a filter. The filter receives pressurized air for filtration after said air has passed through a heater which optimizes the temperature and humidity of the air and passes through a second reheater downstream of the filter and upstream of the turbine to maximize the efficiency of the turbine.
Claims11
A system for providing filtered, air-conditioned air to an environment, said system utilizing an air cycle machine for conditioning said air, said air cycle machine having a compressor and a turbine wherein air is pressurized by said compressor and communicated to said turbine where said turbine expands and cools said air and drives said compressor, said system characterized by:
- a filter for removing contaminants from said air, said filter being arranged downstream of said compressor and upstream of said turbine,
- a heat exchanger arranged downstream of said compressor and upstream of said filter,
- a first reheater arranged downstream of said filter and upstream of said turbine, said first reheater having a first means for passing said air from said filter to said turbine and a second means for passing said air from said compressor to said turbine, said first and second means cooperating to transfer heat energy from the air passing through said first means to the air passing through said second means such that said air passing to said turbine from said filter helps maximize the performance of said turbine, and
- a second reheater arranged downstream of said compressor and upstream of said filter, said second reheater having a first means for passing said air from said compressor to said heat exchanger, and a second means for passing said air from said heat exchanger to said filter, said first and second means cooperating to transfer heat energy from the air passing through said first means to the air passing through said second means such that said air passing to said filter has a given temperature and humidity for providing optimal filter life.
A system for providing filtered, air-conditioned air to an environment, said system utilizing an air cycle machine for conditioning said air, said air cycle machine having a compressor and a turbine wherein air is pressurized by said compressor and communicated to said turbine where said turbine expands and cools said air and drives said compressor, said system characterized by:
- a filter for removing contaminants from said air, said filter being arranged downstream of said compressor and upstream of said turbine,
- means for conditioning said air arranged downstream of said compressor and upstream of said filter,
- a first reheater arranged downstream of said filter and upstream of said turbine, said first reheater having a first means for passing said air from said filter to said turbine and a second means for passing said air from said compressor to said turbine, said first and second means cooperating to transfer heat energy from the air passing through said first means to the air passing through said second means such that said air passing to said turbine from said filter helps maximize the performance of said turbine, and
- a second reheater arranged downstream of said compressor and upstream of said filter, said second reheater having a first means for passing said air from said compressor to said means for conditioning said air, and a second means for passing said air from said means for conditioning said air to said filter, said first and second means cooperating to transfer heat energy from the air passing through said first means to the air passing through said second means such that said air passing to said filter has a given temperature and humidity for providing optimal filter life.
A system for providing filtered, air-conditioned air to an environment, said system utilizing an air cycle machine for conditioning said air, said air cycle machine having a compressor and a turbine wherein air is pressurized by said compressor and communicated to said turbine where said turbine expands and cools said air and drives said compressor, said system characterized by:
- a filter for removing contaminants from said air, said filter being arranged downstream of said compressor and upstream of said turbine,
- a first reheater arranged downstream of said filter and upstream of said turbine, said first reheater adding heat energy to said air passing to said turbine to maximize the performance of said turbine, and
- a second reheater arranged downstream of said compressor and upstream of said filter, said second reheater adding heat energy to said air passing to said filter such that said air has a given temperature and humidity for providing optimal filter life.
Method for conditioning air to be input to an environment by utilizing an air cycle machine having a compressor and a turbine to regulate a temperature of said air and a filter to remove contaminates from the air, said method comprising:
- transferring heat energy from said air passing from said compressor,
- passing said air from said compressor through a heat exchanger,
- transferring a portion of said heat energy into said air passing from said heat exchanger to provide said air with proper parameters for optimizing filter life,
- passing said air through said filter,
- transferring a portion of said heat energy into said air to provide said air passing from said filter with sufficient energy to power said turbine, and
- passing said air through said turbine.
Method for conditioning air to be input to an environment by utilizing an air cycle machine having a compressor and a turbine to regulate a temperature of said air and a filter to remove contaminates from the air, said method comprising:
- transferring heat energy from said air passing from said compressor,
- passing said air from said compressor through a means for removing moisture from said air,
- transferring a portion of said heat energy into said air passing from said means for removing moisture from said air to provide said air with proper parameters for optimizing filter life,
- passing said air through said filter,
- transferring a portion of said heat energy into said air passing from said filter to provide said air with sufficient energy to power said turbine, and
- passing said air through said turbine.
Method for conditioning air to be input to an environment by utilizing an air cycle machine having a compressor and a turbine to regulate a temperature of said air and a filter to remove contaminates from the air, said method comprising:
- transferring heat energy from said air,
- passing said air from said compressor through a means for removing moisture from said air,
- transferring a portion of said heat energy into said air passing from said means for removing moisture from said air to provide said air with proper parameters for optimizing filter life,
- passing said air through said filter,
- transferring a portion of said heat energy into said air passing from said filter to provide said air with sifficient energy to power said turbine, and
- passing said air through said turbine.
Dependencies are inferred from the claim text.